Phase noise of frequency doublers in optical clock lasers Article Swipe
Sofia Herbers
,
Sören Dörscher
,
Erik Benkler
,
Christian Lisdat
·
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.1364/oe.27.023262
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.1364/oe.27.023262
Frequency doublers are widely used in high-resolution spectroscopy to shift the operation wavelength of a laser to a more easily accessible or otherwise preferable spectral region. We investigate the use of a periodically-poled lithium niobate (PPLN) waveguide frequency doubler in an optical clock. We focus on the phase evolution between the fundamental (1396 nm) and frequency-doubled (698 nm) light and its effect on clock performance. We find that the excess phase noise of the doubler under steady-state operation is at least two orders of magnitude lower than the noise of today's best interrogation lasers. Phase chirps related to changes of the optical power in the doubler unit and their influence on the accuracy of optical clocks are evaluated. We also observe substantial additional noise when characterizing the doubler unit with an optical frequency comb instead of using two identical waveguide doublers.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1364/oe.27.023262
- OA Status
- gold
- Cited By
- 12
- References
- 28
- Related Works
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- OpenAlex ID
- https://openalex.org/W2964914382
All OpenAlex metadata
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https://openalex.org/W2964914382Canonical identifier for this work in OpenAlex
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https://doi.org/10.1364/oe.27.023262Digital Object Identifier
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Phase noise of frequency doublers in optical clock lasersWork title
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articleOpenAlex work type
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enPrimary language
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2019Year of publication
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2019-07-30Full publication date if available
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Sofia Herbers, Sören Dörscher, Erik Benkler, Christian LisdatList of authors in order
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https://doi.org/10.1364/oe.27.023262Publisher landing page
- Open access
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://doi.org/10.1364/oe.27.023262Direct OA link when available
- Concepts
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Optics, Frequency multiplier, Phase noise, Laser, Lithium niobate, Noise (video), Waveguide, Physics, Materials science, Optoelectronics, Computer science, CMOS, Image (mathematics), Artificial intelligenceTop concepts (fields/topics) attached by OpenAlex
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12Total citation count in OpenAlex
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2025: 2, 2024: 4, 2023: 2, 2022: 1, 2021: 1Per-year citation counts (last 5 years)
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28Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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| publication_date | 2019-07-30 |
| publication_year | 2019 |
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